In preparation for World IPv6 Day, Google's set up a simple test page to allow users to check whether or not their current local network and ISP are set up to handle the impending changeover. If you're not sure what the whole IPv6 changeover is about, it basically comes down to the amount of people (or machines) that can be on the internet. With the old method of assigning IP addresses, that number was simply too low (we've just about run out). IPv6 is meant to fix that by lengthening the addresses, and changing the way they're formatted so that there are just more of them. Be sure to check out our post What does the IPv6 transition mean to me? if you'd like to know more about the address formatting. [Ready for the future of the Internet? via Google Operating System]